Bleach

Author Message   Samson Username: 981125 Registered: 04-2003 Posted on Thursday, April 17, 2003 - 05:06 pm:    請問家用漂白水的成份 係NaOCl+NaCl+H2O 定HOCl+HCl+H2O thank you   浪貓 yan..~* Username: 991160 Registered: 04-2003 Posted on Thursday, April 17, 2003 - 05:14 pm:    路過的o_o" 八下先~   Inamoto5 Username: admin Registered: 04-2003 Posted on Thursday, April 17, 2003 - 05:16 pm:    The former. 2NaOH + Cl2 --> NaOCl + NaCl + H2O So, a household bleach is alkaline. OCl- + H2O <=> HOCl + OH-   Samson Username: 981125 Registered: 04-2003 Posted on Thursday, April 17, 2003 - 05:24 pm:    咁NaOCl係唔係oxidizing agent?   唔駛做魚la^^"~Michael Username: 981087 Registered: 04-2003 Posted on Thursday, April 17, 2003 - 05:28 pm:    i think yes It bleaches things by oxidation   Inamoto5 Username: admin Registered: 04-2003 Posted on Thursday, April 17, 2003 - 05:32 pm:    In this case, Cl- + OCl- + 2H+ --> Cl2 + H2O OCl- is an oxidizing agent. O.N. of Cl in OCl- decreased from +1 to 0   Inamoto5 Username: admin Registered: 04-2003 Posted on Thursday, April 17, 2003 - 05:34 pm:    Michael is right...   Samson Username: 981125 Registered: 04-2003 Posted on Thursday, April 17, 2003 - 05:35 pm:    咁咪好怪 NaOCl(aq)+2e-=>NaCl(aq)+O2- 咁NaCl(aq)的水evaporate左咪會有鹽出囉 唔係好怪咪   唔駛做魚la^^"~Michael Username: 981087 Registered: 04-2003 Posted on Thursday, April 17, 2003 - 05:42 pm:    點怪? 勁多solution after water evaporates out 都有野remain.   Samson Username: 981125 Registered: 04-2003 Posted on Thursday, April 17, 2003 - 05:48 pm:    咁如果用bleach黎抹野咪有機會有鹽走出黎   浪貓 yan..~* Username: 991160 Registered: 04-2003 Posted on Thursday, April 17, 2003 - 05:49 pm:    Yes, i want to know weather there is any salt too =.="   唔駛做魚la^^"~Michael Username: 981087 Registered: 04-2003 Posted on Thursday, April 17, 2003 - 05:50 pm:    但都唔會所有bleach react 晒 同埋d bleach好dilute tv 都話 1 : 99 la   浪貓 yan..~* Username: 991160 Registered: 04-2003 Posted on Thursday, April 17, 2003 - 05:54 pm:    咁其實有冇鹽ga~? 定係因為太過dilute先見唔到有鹽~?   Samson Username: 981125 Registered: 04-2003 Posted on Thursday, April 17, 2003 - 05:55 pm:    一比九十九 清潔好幫手   唔駛做魚la^^"~Michael Username: 981087 Registered: 04-2003 Posted on Thursday, April 17, 2003 - 05:56 pm:    得閒飲下防肺炎   浪貓 yan..~* Username: 991160 Registered: 04-2003 Posted on Thursday, April 17, 2003 - 06:00 pm:    一比九十九~ 防炎係至好~   小畫家 Username: 981039 Registered: 04-2003 Posted on Thursday, April 17, 2003 - 10:00 pm:    U die after u drank,so no need to afraid of the SARS.....   浪貓 yan..~* Username: 991160 Registered: 04-2003 Posted on Thursday, April 17, 2003 - 10:03 pm:    yaya~~ u're right~